Made sure that dead nodes are skipped in a coherent fashion, and come back alive when their timeout has expired

Author: Mpdreamz

src/Elasticsearch.Net/ConnectionPool/StaticConnectionPool.cs

@@ -55,6 +55,7 @@ public virtual Uri GetNext(int? initialSeed, out int seed)
 						state._attempts = 0;
 						return uri;
 					}
+					Interlocked.Increment(ref _current);
 				}
 				Interlocked.Increment(ref state._attempts);
 				++attempts;